Improvement in ranges for heating and cooking



'1. s. CLA'RK.

Range.

Patented Oct. 4, 1870 FIG-l WI r/vsssz-s;

3 JOHN oLAnK, or PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 107,8 76, dated October 4, 1870.

IMPRQVEMAENT m RANGES FOR HEATING AND COOKING.

The Schedule referred to in these Letters Patent and making part of the same.

I JOHNS. CLAmgot the city of Philadelphia-iii the State of Pennsylvania, have invented'certain Im-' which the following is a specification.

Nature and Objcctsof the Invention. My improvement relates to that class of kitchenprovements in Ranges for Heating and Cooking, of

ranges in which the oven is located in an elevated position,"witl1 its mouth opening through a face-plate rising vertically from the back edge of the "horizontal top plate of the combustion-chamber; and

My invention consists in the construction and arran gement of a gradually enlarging upward-draught flue between the combustion-chamber and the horizontal flue under the oven, and corresponding, in width, with.

the respective widths of the said combustion-chami her and the space containing the oven, the object of my invention being to oanse'the hot products of com-' bustion, which enter the said up-fl'ue, to expand before they enter the horizontal flue beneath the oven, suflieiently to prevent the front part of the bottom plate of the said oven from becoming too highly heated, or to equalize the heat of the whole bottom plate of the oven, without impairing the strength of the draught along the bottom of the said oven.

Description of thellccmapanyt'ng Drawing.

j Figure-1 is a-perspectiveview of a range embodyingmy invention. I

Figure 2 is :1. Vertical. transverse section through .the middle of fig. 1.

General Description.

A is the front or face-plate of the oven B, thetop plate of the combustion-chamber b; and

'b, the diffusing npflue, between the bottom plate a." of the oven and the combustion-chamber b.

The face-plate A is made of such a height as to allow the mouth of the-oven a to be sufficiently above the top plate B of the combustion-chamber to permit its .usnal doors (not shown) to swing clear over the.

cooking vessels.(not shown) which are usually on the said top plate.

The up-flue 1)" corresponds, in width,"with the eX-' trenie width of the usual flue under the bottom plate a of the oven, and the front part, 3, of thebottom of said flue under the oven slopes downward and forward to thebottom of the combustion-chamber b, and, consequently, the hot, gaseous products of combustion will be permitted to spread or become more widely diffused before they impinge against the bot tom plate a" of the oven, and the excessive heating of the front part' of the said bottom plate be prevented, or; the plate heated more eqnably, and, therefore, in a manner more suitable for baking in the oven, the hot gases passing in the direction of the arrows, andescaping into the chimney, in the usual Claim. I claim as my invention- 7 In a range of the class specified, the gradually enlarging up-fiue b", in combination with the combustion-chamber b, and the horizontal flue beneath the elevated oven at, substantially as and for the purpose hereinbefore set forth.

JOHN S.' GLARK.

Witnesses:

THOMAS STEELE,

- WM. H. MomsoN. 

